299 lines
11 KiB
Dart
299 lines
11 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_slidable/flutter_slidable.dart';
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import 'package:inventory_system/services/station_service.dart';
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import 'package:inventory_system/screens/admin/station/station_form.dart';
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import 'package:inventory_system/screens/bottom_nav_bar.dart';
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import 'package:inventory_system/screens/nav_bar.dart';
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import 'package:inventory_system/screens/title_bar.dart';
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class StationScreen extends StatefulWidget {
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const StationScreen({super.key});
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@override
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State<StationScreen> createState() => _StationScreenState();
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}
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class _StationScreenState extends State<StationScreen> {
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int _selectedIndex = 0;
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final StationService _stationService = StationService();
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late Future<List<dynamic>> _stationsFuture;
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List<dynamic> _allStations = [];
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List<dynamic> _filteredStations = [];
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final TextEditingController _searchController = TextEditingController();
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@override
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void initState() {
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super.initState();
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_stationsFuture = _fetchStations();
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_searchController.addListener(_onSearchChanged);
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}
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Future<List<dynamic>> _fetchStations() async {
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try {
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final stations = await _stationService.fetchStations();
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stations.sort((a, b) {
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final nameA = a['stationName'] as String? ?? '';
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final nameB = b['stationName'] as String? ?? '';
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return nameA.toLowerCase().compareTo(nameB.toLowerCase());
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});
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if (mounted) {
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setState(() {
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_allStations = stations;
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_filteredStations = stations;
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});
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}
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return stations;
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Failed to load stations: $e'), backgroundColor: Colors.red),
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);
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}
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rethrow;
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}
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}
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@override
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void dispose() {
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_searchController.dispose();
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super.dispose();
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}
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void _onSearchChanged() {
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final query = _searchController.text.toLowerCase();
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setState(() {
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_filteredStations = _allStations.where((station) {
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final name = station['stationName'].toString().toLowerCase();
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final department = station['departmentName'].toString().toLowerCase();
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return name.contains(query) || department.contains(query);
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}).toList();
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});
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}
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void _handleDelete(int stationId) async {
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try {
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await _stationService.deleteStation(stationId);
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if (!mounted) return;
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('Station deleted successfully'),
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backgroundColor: Colors.green),
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);
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_fetchStations();
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Failed to delete station: $e'),
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backgroundColor: Colors.red),
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);
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}
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}
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}
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void _confirmDelete(int stationId, String stationName) {
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('Delete Station'),
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content: Text('Are you sure you want to delete $stationName?'),
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actions: [
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TextButton(
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onPressed: () => Navigator.pop(context),
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child: const Text('Cancel')),
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TextButton(
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onPressed: () {
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Navigator.pop(context);
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_handleDelete(stationId);
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},
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child: const Text('Delete', style: TextStyle(color: Colors.red)),
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),
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],
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),
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);
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}
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void _navigateAndRefresh() {
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Navigator.push(
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context,
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MaterialPageRoute(builder: (context) => const StationFormScreen()),
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).then((_) => _fetchStations());
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: const Color(0xFFF5F5F7),
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appBar: const TitleBar(title: 'Station'),
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drawer: const NavBar(isAdmin: true, selectedScreen: AppScreen.station),
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body: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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children: [
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Row(
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children: [
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ElevatedButton.icon(
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onPressed: _navigateAndRefresh,
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icon: const Icon(Icons.add, size: 18),
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label: const Text('Add Station'),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.purple.shade100,
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foregroundColor: Colors.black87,
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padding:
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const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12)),
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),
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),
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const SizedBox(width: 12),
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Expanded(
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child: TextField(
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controller: _searchController,
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decoration: InputDecoration(
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hintText: 'Search',
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hintStyle: TextStyle(color: Colors.grey.shade400),
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prefixIcon: const Icon(Icons.search),
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filled: true,
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fillColor: Colors.white,
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(12),
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borderSide: BorderSide.none),
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),
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),
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),
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],
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),
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const SizedBox(height: 16),
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Expanded(
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child: RefreshIndicator(
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onRefresh: _fetchStations,
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child: FutureBuilder<List<dynamic>>(
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future: _stationsFuture,
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builder: (context, snapshot) {
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if (snapshot.connectionState == ConnectionState.waiting &&
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_allStations.isEmpty) {
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return const Center(child: CircularProgressIndicator());
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}
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if (snapshot.hasError && _allStations.isEmpty) {
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return Center(child: Text('Error: ${snapshot.error}'));
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}
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if (_filteredStations.isEmpty) {
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return const Center(child: Text('No stations found.'));
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}
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return ListView.builder(
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itemCount: _filteredStations.length,
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itemBuilder: (context, index) {
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final station = _filteredStations[index];
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return Padding(
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padding: const EdgeInsets.only(bottom: 12),
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child: Slidable(
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key: Key(station['stationId'].toString()),
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endActionPane: ActionPane(
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motion: const StretchMotion(),
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children: [
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SlidableAction(
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onPressed: (context) {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) =>
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StationFormScreen(station: station)),
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).then((_) => _fetchStations());
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},
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backgroundColor: Colors.blue,
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foregroundColor: Colors.white,
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icon: Icons.edit,
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label: 'Edit',
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),
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SlidableAction(
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onPressed: (context) => _confirmDelete(
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station['stationId'],
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station['stationName'],
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),
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backgroundColor: Colors.red,
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foregroundColor: Colors.white,
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icon: Icons.delete,
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label: 'Delete',
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borderRadius: const BorderRadius.horizontal(
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right: Radius.circular(16)),
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),
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],
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),
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child: Card(
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margin: EdgeInsets.zero,
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color: Colors.white,
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elevation: 1,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(16),
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side: BorderSide(color: Colors.grey.shade300),
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),
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child: ListTile(
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contentPadding: const EdgeInsets.symmetric(
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vertical: 8,
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horizontal: 16),
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title: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Expanded(
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child: Text(
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station['stationName'] ?? 'No Name',
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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color: Colors.black87,
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),
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overflow: TextOverflow.ellipsis,
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),
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),
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const SizedBox(width: 8),
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Text(
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station['departmentName'] ?? 'No Department',
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style: TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w500,
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color: Colors.grey.shade600,
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),
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),
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],
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),
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subtitle: Padding(
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padding: const EdgeInsets.only(top: 4),
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child: Text(
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station['fullName'] ?? 'N/A',
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style: TextStyle(
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fontSize: 14,
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color: Colors.grey.shade600,
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),
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),
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),
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),
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),
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),
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);
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},
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);
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},
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),
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),
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),
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],
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),
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),
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bottomNavigationBar: BottomNavBar(
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selectedIndex: _selectedIndex,
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onItemTapped: (index) {
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if (index == 0) {
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Navigator.pop(context);
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} else {
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setState(() {
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_selectedIndex = index;
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});
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}
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},
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),
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);
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}
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}
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